Separable fastener.



im@ srATESrATjENT FRED s. CARR, orJNEW'roN,MASSACHUSETTS, Assienon To.CARR rAsarnunnQ;

'ooivirANic yorv CAMBRIDGE, MASSACHUSETTS, A CORPORATION or MAINE.

i sEiARABLE rAsTriNER. y

y Newton, 'in the county of Middlesex, Commonwealth of Massachusetts,(whose postv oiice address is care of Carr Fastener Coinpany, Cambridge,Massachusetts,) have invented an Improvement in Separable Fasteners, (BQof which the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawingsrepresenting like parts.

' This invention pertains to improvements in separable fasteners, andmore particulai'ly,v though not exclusively, to-fasteners in which astud lenters a socket and is separable therefrom by relative tippingmove- `ment of lstud and socket in one direction only.

In the drawings, whichshow a preferred form of one embodiment of myinvention Figure l is a front elevation of a preferred form of sockethaving the stud en tered therein; l,

Fig. 2 isa section on the line 2 2 of Fig. l; and v Fig. 3 is a sectionon the line 3-3 of Fig. 2. y y

In the preferred form of my invention selected for illustrati-vepurposes, I have shown a stud 4 having a head l5 presenting a neck 6 andarelatively abrupt shoulder7. Cooperating with the stud 4 I provide asocket, which preferably includes a front 'plate 8, and a rear plate 9,engaging between them a resilient jaw 10 below the stud` 4. The frontplate 8 of the socketmay be died inwardly -at ll to engage behind theshoulder 7 of the stud. i

The socket may be secured to a curtain 1Q in any suitable way, typifiedby the prongs 13 passing through a clench-plate 14 in the usual manner.l secured to the curtain 1'5 by prongs l6passing through thecleiich-plate4` 17 in the usual manner.

' Whenv thea-stud is being entered in thel socket, the yielding jaw l0springs downwai'dly until the fiXed jaw ll enters in the neck 6 of thestud andthe yielding jaw l() also enters in said neck.

The stud and socket.

Specification of Letters Patent.

Similarly. the stud may be cannot bc separated When, however, thelowerportioii of the socket is pulled outwardly, the shoulder 7 will'ride over and pushdownwardly the yieldingjaw l0 becausethe depth oftheshoulder is so proportioned that the rounded `surface only of theyielding jaw will be engaged by it. Pressure on this rounded surfacewill cause the yielding )aw to vield downwardly until the Jaw isentirely disengaged from the neck G. at which time suicient tippingmovement has taken place so that the engagement of the shoulder by thefixed jaw ll will no longer be positive.

While I have shown and described a'preferred form of one embodiment ofin v invention, it will be understood that major changes involif'ingomission, substitution, alteration and reversal ofv parts. and evenchanges in the mode of operatioinmav bel made without departing from thescope 'of my invention` which is best dened in the following claims.

Claims:

l. A stud and socket fastener comprising,

in lCombination, a stud having a head and a neck with an abrupt shoulderbetween` them, a socket having a resilient jaw round neck behind saidshoulder, said neck being relatively shallow, whereby the edge of thehead adjacent theshouldcr will engage au inwardly sloping roundedpoi-tion ot' the rcsilient jaw.

2. A stud and socket fastener comprising. in combination. a stud havinga head and a relatively shallow neck. with au ahi-apt shoulder betweensaid head and neck. and

a socket having an un \'ieldiug jaw for vii-- gagenieiit behind saidneck at om` .sido thoreof and a resilient jaw for engagement with saidneck at1 the opposite side thereof. .said

Patented Ain. 15, 19519.

Appiication fiiei July 1, 1918. seriai No. 242,697.

vin cross section for 'engagement with said I v lesfs-han oneha1f olfthe engaging said neck at one side thereof, and 'diameter Qfsaid`resilient' Jaw.

'13, -Abdand socket-fastener compris-ng,

, in combintm a stud lia'lvi'n'ga neck and ai 5 abrupt shoulder, asocket having a front plateand a back plate; ja rigid vjaw projectingl'rearwardly' from- .jsaidv. front plate and l afyielelingjaw betweensaid .plates engaging .the o'pposlte slde of said neck.

I n testimonywqheref, I have signed my ',iiame to this speclfieatlon.

FRED s. CARR.

